Holding means for a hydraulic coupling
a technology of hydraulic coupling and holding means, which is applied in the direction of machine supports, agricultural machines, other domestic objects, etc., can solve the problems of work equipment with exposed movable connector parts being stored in a rather dirty environment, work equipment with exposed movable connector parts operating in harsh environments,
Active Publication Date: 2012-09-11
NORDHYDRAULIC AB
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AI Technical Summary
Benefits of technology
"The present invention provides an improved arrangement for keeping the connector parts clean in a hydraulic system on a work equipment. This is achieved by a holding means that protects the movable connector part from damage and keeps it clean between operations. The holding means is fixedly arranged on the work equipment and its contact surface is accessible for protective connection of the movable connector part. The invention minimizes the risk of damage to the movable connector part and ensures its continued functionality."
Problems solved by technology
The work vehicle often operates in harsh environments, in which the connector parts are exposed to dirt.
Firstly, the cover collects dirt during operation as the lower protective surface of it is left exposed to the environment during normal operation.
Additionally, no protection is provided for the movable connector part when it is disconnected from the fixed connector part.
Normally, the work equipment with the exposed movable connector part is stored in a rather dirty environment, often outside.
Method used
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[0023]FIG. 1 shows a schematic view of a work vehicle 1, i.e. a tractor, provided with a conventional hydraulic system comprising a hydraulic pump, a tank with hydraulic fluid and a number of conduits, connections and valves. The hydraulic system comprises a fixed connector part 10, which is adapted to be connected to a movable connector part of a hydraulic system of a work equipment 2 to be used on the work vehicle 1. In FIGS. 1-5 the movable connector part is represented by a movable multi coupling part 20.
[0024]Often, a work vehicle 1 is used for a number of different work tasks involving different work equipments 2. In the figures, the work equipment 2 is exemplified by a front loader unit, which is releasably attached to the work vehicle 1. In addition to the movable connector part 20, the front loader is provided with a movable hydraulic system comprising connections, conduits and pistons for lifting the loader and tilting the bucket. Generally, different types of equipments a...
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A holding device to protect a movable connector part of a hydraulic system on work equipment, which mates with a fixed connector part of a hydraulic system on a work vehicle. The holding device is fixedly mounted on the work equipment and has recesses which receive and protect the hydraulic connections of the movable connector part when they are not engaged with the fixed connector part. The holding device may have a contact surface which mates with the hydraulic connectors of the movable part. The recess or recesses can receive a multipart hydraulic connector or a plurality of individual connectors. The holding device may include an electrical connector dummy for attachment to an electrical connector on the work equipment. A cover fits over the holding device when it is not engaged by a movable connector part; and it also mates with the fixed connector part when it is not engaged by the movable connector part.
Description
TECHNICAL AREA[0001]The present invention relates to a holding means for holding and protecting a movable connector part of a hydraulic system.BACKGROUND OF THE INVENTION[0002]Hydraulic systems are used in a wide variety of applications. One application relates to work vehicles, such as wheel loaders or tractors, to which a work equipment, such as front loader, a plough, a bucket or similar, my be connected. A part from being mechanically connected to the work vehicle, the work equipment also needs to be hydraulically connected. The work equipment includes a hydraulic system for controlling its functions. This hydraulic system is connected to and driven by the hydraulic system of the work vehicle.[0003]The two hydraulic systems are interconnected by means of connector parts. The connectors are preferably of a multi coupling type, in which a plurality of hydraulic connections may be connected in one single operation. A multi coupling comprises a fixed part on the vehicle and a movabl...
Claims
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IPC IPC(8): F16L11/12
CPCE02F3/3654E02F9/2275E02F3/627A01B59/06F16L55/24
Inventor LUNDGREN, BERTIL
Owner NORDHYDRAULIC AB